Option Explicit Private Sub Command1_Click() Dim a1, a2, b As Integer Dim i, n As Integer n = InputBox("显示数列的前N项") a1 = 1 For i = 1 To n b = a1 + a2 Text1.SelText = b & " " a1 = a2 a2 = b Next i End Sub Private Sub Command2_Click() End End Sub